Finding the Fourth Proportional to 189,069.28, 260,922.18 and 103,035.31
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Solution
The fourth proportional to 189,069.28, 260,922.18 and 103,035.31 is: 142,192.31
Step by Step Solution
- Step 1: Write the proportion equation
189,069.28 : 260,922.18 = 103,035.31 : x - Step 2: Convert to fraction form
189,069.28/260,922.18 = 103,035.31/x - Step 3: Cross multiply
189,069.28x = 260,922.18 × 103,035.31 - Step 4: Simplify right side
189,069.28x = 26,884,197,702.18 - Step 5: Solve for x
x = 26,884,197,702.18/189,069.28 - Step 6: Final answer
x = 142,192.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.